And the Lord said unto Samuel, How long wilt thou mourn for Saul, seeing I have rejected him from reigning over Israel? fill thine horn with oil, and go, I will send thee to Jesse the Bethlehemite: for I have provided me a king among his sons. (16:1)

Then Samuel took the horn of oil, and anointed him in the midst of his brethren: and the spirit of the Lord came upon David from that day forward. So Samuel rose up, and went to Ramah. (16:13)

--Psalms--

Then thou spakest in vision to thy holy one, and saidst, I have laid help upon one that is mighty; I have exalted one chosen out of the people (89:19)

I have found David my servant; with my holy oil have I anointed him (89:20)